Government of Canada
"64% of visits to hospital emergency departments among 10-18 year-olds are related to participation in sports, physical activity and recreation.
Among children and youth (10-18 years) who visit an emergency department for a sports-related head injury, 39% were diagnosed with concussions, while a further 24% were possible concussions.
Football, soccer and hockey have all shown a greater than 40% increase in rates of reported head injury (relative to other injuries) between 2004 and 2014 for children and youth."http://canada.pch.gc.ca/eng/1465244566173
Alcohol cause of more annual Canadian hospital emergency departments visits then heart attacks! Prohibit alcohol again, NOT.http://www.cbc.ca/news/health/alcohol-hospital-admissions-1.4172091